Caidi 1 PACK Compatible Print thead Replacement for HP88 Printhead (Cyan/Magenta) C9382A Brand : CAIDI Packing List: Remanfactured 1 PACK Cyan/Mgenta HP88 Printhead The printers are compatible: HP office jet Pro L7550, L7580,L7590,L7650,L7680,7750, L7780, L7500 The printers are compatible: HP office jet Pro K5400. K5400dtn, K5400dn K5400tn,K550,K550dtn, K550dtwn, K8600, K8600dn Any questions,please email us.